Network System Laboratory - Source of CentOS7

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Go to CentOS7.

* CentOS7について [#te985dad]
- [[CentOS6]]
- [[CentOS8]]
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** CentOS7 Memo [#j6bc5532]

*** dotnet 6.0 (for [[OpenSim]]) [#x196c9c9]
 rpm -Uvh https://packages.microsoft.com/config/centos/7/packages-microsoft-prod.rpm
 yum install dotnet-*-6.0 
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*** ネットワーク設定ツール [#v6e46ac0]
- nmtui
- systemctl restart NetworkManager
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*** IPv6 の無効化 [#s2724c24]
 # vi /etc/default/grub
       GRUB_CMDLINE_LINUX="ipv6.disable=1 rd.lvm.lv=fedora-server/root.....
 # grub2-mkconfig -o /boot/grub2/grub.cfg 
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*** Firewall [#k31a7f33]
 # systemctl stop firewalld.service
 # systemctl mask firewalld.service

 # firewall-cmd --add-service=smtp --permanent
 # firewall-cmd --add-service=smtp-submission --permanent
 # firewall-cmd --reload 
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*** タイムデーモン [#e82a60ea]
- chronyd
- 設定は /etc/chrony.conf 
-- サーバになるには allow の指定が必要
- ntp を使用してもよい．
-- ntp を使用する場合は chrony は無効化する．無効化しないと ntpd は起動しない

 yum install chrony
 systemctl enable chronyd.service
 systemctl start chronyd.service
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- 時間が9時間進む場合
-- RTC(ハードウェアクロック)が UTC になっている可能性がある

 hwclock -s --localtime

***systemctl  by macsatou :-D  [#iaa4e522]
/etc/init.d/script start相当
 # systemctl start unit
/etc/init.d/script stop 相当
 # systemctl stop unit 
service --status-all 相当
 # systemctl --full 
chkconfig --list 相当
 # systemctl --full list-unit-files 
chkconfig script on 相当
 # systemctl enable unit 
chkconfig script off 相当
 # systemctl disable unit 
chkconfig --add script 相当
 # systemctl daemon-reload
PID探してkill -9
 # systemctl kill -s 9 sshd 
ls /etc/init.d
 # systemctl --type service

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Backup list of CentOS7
Backup source of CentOS7(No. All)
- 1: 2015-04-27 (Mon) 14:29:15 iseki
- 2: 2015-04-27 (Mon) 16:03:29 iseki
- 3: 2015-05-10 (Sun) 12:03:37 macsatou
- 4: 2015-05-23 (Sat) 01:56:12 iseki
- 5: 2016-01-02 (Sat) 13:51:31 macsatou
- 6: 2019-05-10 (Fri) 11:08:27 iseki
- 7: 2020-01-09 (Thu) 20:54:53 iseki
- 8: 2020-12-29 (Tue) 23:31:43 iseki
- Cur: 2023-08-14 (Mon) 21:11:01 iseki

Source of CentOS7

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